import Vue from 'vue';
export default {
    treeToArray(data, parent, level, expandedAll) {
        let tmp = []
        Array.from(data).forEach((record) => {
            if (record._expanded === undefined) {
                Vue.set(record, '_expanded', expandedAll)
            }
            if (parent) {
                Vue.set(record, '_parent', parent)
            }
            let _level = 0
            if (level !== undefined && level !== null) {
                _level = level + 1
            }
            Vue.set(record, '_level', _level)
            tmp.push(record)
            if (record.children && record.children.length > 0) {
                let children = this.treeToArray(record.children, record, _level, expandedAll)
                tmp = tmp.concat(children)
            }
        })
        return tmp;
    }
}